Thread tensioning device



Allg' 39% c; HxLscHER lm jim, 8,. 393@ INVENTOR p14/IKS" l BY .j /a 1 Jive, ATTORNEYS *.30 Referring to the dra-wing,lthe embodiment adapted to receive a cotter pin 15 or the like,

mena-a Aug. so, 1932 1,374,011

UNITED STATES PATENT OFFICE OUBT HILSCHEB, OF CHEMNITZ, GERMANY THREAD TENSIONING DEVICE Application Meld January l, 1980, Serial No. V$19,298, and in Germany August 1, 1929.

The present invention relates more particuadapted to limit the extent of downward larly to an improvement in thread tensioning movement of the tensioning device when it devices adapted to be used in connection with is ap lied to a guide carrying rod or bar or fabric forming machines such as knitting the li e of a fabric forming machine, as the 5 machines and the like. One object thereof guide carrying bar70fal rnittin v machine. 60 has been to rovide a tension device of rela- AS indicated more clearly in Figure 4, the tively simp e and inexpensive construction intermediate portion 3 of the base is p rowhich may readily be attached to and devided with an opening 8 adapted to receive tached from a fabric formin machine witha portion of a non-metallic thread guide 'i0 out removing or disturbing t e fabric fermmember 9 having an opening 10 to receive the 55l ing instrumentalities thereof. A further obthread 11 or the like. The guide member- 9 ject of the invention has been to provide in is preferably made of a non-inetallic material such a tensioning device, a readily adjustsuch as porcelain, glass or other-suitable maable thread guiding memb'er capable of angu- I terial to present a minimum of frictional rei5 lar adjustment with respect to it base |50 sistance to passage of the thread 11 and is 6u increase or diminish the frietional effect as formed with an upwardly exposed transverse the thread moves or is drawn therethrough. ridgeg'12 forming a thumb piece wherebythev A preferred embodiment of my invention guide member may be rotated to different pois illustrated in the drawing forming a part Sitions f adjustment With respect t0 the 2o of the present specification and in which: base. A lower portion 17 of said guide mem- 65 Figure 1 is 4an end elevation; e ber is of reduced cross sectional area and Figure 2, a side elevation; passes through and engages the opening 8. Figure 3, a top plan view; The shoulder formed between the main por- Figure 4, a fragmentary view in perspection of the guide member and reduced lower 25 tive illustrating more particularly the conportion 17 is provided on its under side with 70 struction of the metallic base or supporting suitable deformations as the corrugations 13, member; and Figure 5. The extreme lower end of the Figure 5, a bottom plan view of a rotatable guide member is of "further reduced cross thread guide member. sectional area and is provided with a hole 14 of my invention therein shown, includes a rsaid lower end vforming with the portion 17 base formed from a single strip of material a shoulder 16. A washer 18 is interposed bepreferably metal and ent to provide retween said pin 'and thex shoulder 16. A silient clamping legs or portions 1 -and 2 spring 19 is interposed between' 'aiower sui'- extending from an intermediate rigid thread face of the intermediate portion Boflthe base 80 guide supporting portion 3. Lugs 4 are and an upper surface of said washer 18 and is struck up out of the material of the clamping adapted to retain the guide member in yieldlegs 1 and 2 and are provided with opening frictional engagement with-said interings within which are secured noir-metallic mediateportion 3.

bushings 5, preferably of porcelain, glass or As shown more clearlyi in, Figure 4, a

other suitable material each having an openplurality of deformations 20 are formed in a ing through whichathread 11 or the like may portion of the upper surface of the interbe drawn with a minimum of frictional effect. mediate portion 3 of the base and adjacent to The resilient leg 1 has its lower end bent to the/opening 8, said deformations being po- Y .4.5 form a transversely extending portion 6 Sitionedrand adapted to cooperate with the 9 viiryieldiiig engafnie t corrugations 13 on the guide member 9 and to act as detents to prevent undesired angular movement of said guide member 9 relatively to the base.

ln operation', with the tensioning device secured as indicated in Figure 1, a thread member having one end extending through said opening and rotatably adjustable in relation to said base, and a spring cooperating with said member and bearing against one side of said base to releasably retain said guiding member in yielding engagement sucli as 11 is drawn through the guide bushwith a portion of the opposite side of the base ings 5 and the hole 10 of guide member 9. and in any desired position of angular ad- For minimum tension on said thread, guide j ustment with respect thereto. member 9 is turned to bring its opening 10 In testimony whereof, I have signed my vvith the openings of the guide name to this specification this 19th day of L' g'iisioiL-aon; @he December, 1929. t threadlly. gui url @Im means of the thumb piece 12 to any d :msired( angular position in relationto the base Where base by means of the spring 19asfiloigehde;`

scribed. I claim @maare-emilia 1. A thread tension devieecoinp ai 'i base-1` a-v lthread igiiidingfmemher. iro'tatably `mounted x'oii' 'saidfhi'segemeansi .for releasably retaining sa'id' member Aiii:yielding` engage.l nient with said.base;aiidrletentineans-.foi` retaining said lilierlibei -iiizniiyiidesifred'position of angular i adjustment with"` respect to said base. i :i y 2. A threadl ter `onvdei'fie fcomprising-.a base oriiied 01a le-piece ofhietal lbent to provide 'resili'iit= y ping'i-'p-oitions"'andI a guide supporting rtip'iif prvidedi ivithf a" guide receiving? openingrariddeformations adjacent tliereto,la threadgiiidef member haw.

' a poi-tionekt'eiidiii' -fthrozughfsaid opening ibase'V to? ret. yieldiiigfr A 3. thre" des-Land desired respect thert' y thread guiding marit 

